Home / 11,470.55-15,821.19-9,764.69

Finding the Fourth Proportional to 11,470.55, 15,821.19 and 9,764.69

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Solution

The fourth proportional to 11,470.55, 15,821.19 and 9,764.69 is: 13,468.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,470.55 : 15,821.19 = 9,764.69 : x
  2. Step 2: Convert to fraction form
    11,470.55/15,821.19 = 9,764.69/x
  3. Step 3: Cross multiply
    11,470.55x = 15,821.19 × 9,764.69
  4. Step 4: Simplify right side
    11,470.55x = 154,488,936.68
  5. Step 5: Solve for x
    x = 154,488,936.68/11,470.55
  6. Step 6: Final answer
    x = 13,468.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.